From: Djordje Todorovic <djtodoro@cisco.com>
Date: Thu, 5 Nov 2020 15:17:40 +0000 (-0800)
Subject: [NFC][IntrRefLDV] Remove dead code from transferSpillOrRestoreInst()
X-Git-Tag: llvmorg-13-init~6158
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=22fd38d5080ed41bf352efcd852666436c678b90;p=platform%2Fupstream%2Fllvm.git

[NFC][IntrRefLDV] Remove dead code from transferSpillOrRestoreInst()

Differential Revision: https://reviews.llvm.org/D90852
---

diff --git a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
index df5670e..69179d0 100644
--- a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
+++ b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
@@ -1968,13 +1968,6 @@ bool InstrRefBasedLDV::transferSpillOrRestoreInst(MachineInstr &MI) {
     if (TTracker)
       TTracker->transferMlocs(MTracker->getRegMLoc(Reg), SpillLocIdx,
                               MI.getIterator());
-
-    // VarLocBasedImpl would, at this point, stop tracking the source
-    // register of the store.
-    if (EmulateOldLDV) {
-      for (MCRegAliasIterator RAI(Reg, TRI, true); RAI.isValid(); ++RAI)
-        MTracker->defReg(*RAI, CurBB, CurInst);
-    }
   } else {
     if (!(Loc = isRestoreInstruction(MI, MF, Reg)))
       return false;